Field Notebook: Ontario 1912
Page 104
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
are hard to get. Mostly small Orthoceras. Then 13 1/2 feet of chalky limestone that weather into a nodular limestone. There are many fossils that show no weathering but few can be had that have any value. Syngonina Kentuckensis is common and there are Trivalves and gastropods. Saw no coral other than a single Strophomena adustum. Then came regular bedded li with shale faster down to base line, 28 1/2 feet. These beds became more and more prolificous. Those collected at the bottom are marked zone (3), and those near the top are zone (2). In zone (2) I also a single R. capay and Str. morona filitexta. In zone (3) Orthus insculpta, Strophomena nusta and Fairstella stellata are the most common fossils. Bygnea are also common but all are in slabs. The Richmond seen this morning measures 83 feet and is essentially a limestone - then bedded- slabs with lots little shale. The shale increases in amount towards the bottom and here the fossils are also more common. Orthus insculpta appears to be restricted to the lower 28 feet.